transform() — langchain Function Reference

Architecture documentation for the transform() function in passthrough.py from the langchain codebase.

Function python LangChainCore Runnables calls 1 called by 5

Entity Profile

LangChainCore→ Runnables→ transform() — langchain Function Reference

Dependency Diagram

graph TD
  6b634a0f_8373_1838_7f85_ec4585108419["transform()"]
  e893b6ae_1c28_41f1_aa8b_a66d0f779312["RunnableAssign"]
  6b634a0f_8373_1838_7f85_ec4585108419 -->|defined in| e893b6ae_1c28_41f1_aa8b_a66d0f779312
  9fc793b3_b726_058a_aebb_ca81faf79b43["stream()"]
  9fc793b3_b726_058a_aebb_ca81faf79b43 -->|calls| 6b634a0f_8373_1838_7f85_ec4585108419
  8d2a37b9_a0ae_643b_9bbd_130393223126["transform()"]
  8d2a37b9_a0ae_643b_9bbd_130393223126 -->|calls| 6b634a0f_8373_1838_7f85_ec4585108419
  fe63d77f_0665_55ba_e4bf_6bb86b5251c0["transform()"]
  fe63d77f_0665_55ba_e4bf_6bb86b5251c0 -->|calls| 6b634a0f_8373_1838_7f85_ec4585108419
  a51fc650_dd24_4986_7118_5682f1932c8b["_transform()"]
  a51fc650_dd24_4986_7118_5682f1932c8b -->|calls| 6b634a0f_8373_1838_7f85_ec4585108419
  d947aa85_3ece_1be3_71e0_d9e8f04de78b["stream()"]
  d947aa85_3ece_1be3_71e0_d9e8f04de78b -->|calls| 6b634a0f_8373_1838_7f85_ec4585108419
  8d2a37b9_a0ae_643b_9bbd_130393223126["transform()"]
  6b634a0f_8373_1838_7f85_ec4585108419 -->|calls| 8d2a37b9_a0ae_643b_9bbd_130393223126
  style 6b634a0f_8373_1838_7f85_ec4585108419 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/passthrough.py lines 585–593

    def transform(
        self,
        input: Iterator[dict[str, Any]],
        config: RunnableConfig | None = None,
        **kwargs: Any | None,
    ) -> Iterator[dict[str, Any]]:
        yield from self._transform_stream_with_config(
            input, self._transform, config, **kwargs
        )